Hardness than corundum, abrasive easily broken, sharp edges and corners, good cutting, grinding heat and small.

硬度高于棕刚玉，磨粒易破碎，棱角锋利，切削性能好，磨削热量小等。

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Hardness than corundum, abrasive easily broken, sharp edges and corners, good cutting, grinding heat and small.

硬度高于棕刚玉，磨粒易破碎，棱角锋利，切削性能好，磨削热量小等。

youdao